Finding the Fourth Proportional to 42,439.04, 63,662.52 and 16,136.72

Step by Step Solution

1. Step 1: Write the proportion equation
   42,439.04 : 63,662.52 = 16,136.72 : x
2. Step 2: Convert to fraction form
   42,439.04/63,662.52 = 16,136.72/x
3. Step 3: Cross multiply
   42,439.04x = 63,662.52 × 16,136.72
4. Step 4: Simplify right side
   42,439.04x = 1,027,304,259.73
5. Step 5: Solve for x
   x = 1,027,304,259.73/42,439.04
6. Step 6: Final answer
   x = 24,206.59